8.1 Self-test and Error Message
8-4
8.1.2 Error messages
1. PLL1 Unlock
When unlocked state of PLL circuit on TX/RX board is detected, a pop-up window will
appear as an error. This checks the changing of channels and switching of TX/RX
function. See fig.8.1.2 for a detector circuit.
2. PLL2 Unlock
As for FM-8800D, when unlocked state of PLL circuit on DUP RX board (05P0777) is
detected, a pop-up widow will appear as an error. This checks the changing of channels
and switching of TX/RX function. Refer to fig.8.1.5 for a detector circuit.
3. GPS ERROR (EPFS ERROR: FM-8800 Ver. 03.01 and after, and Russian Ver.)
When a position data from GPS cannot be received for longer than a minute, a pop-up
window will appear as an error and alarm will go off. Alarm sound is of 2200 Hz (50
ms) and goes off three times every 2 seconds.
Refer to page 4-12 (1. POSITION OLDER) and page 4-18 (4.3.5 POSITION).
4. Printer PE
When Printer detects “Paper End”, a pop-up window will appear as an error and alarm
will go off. This error goes off when you try to print something out without a printer
connected. Refer to page 4-29 (4.3.7 PRINT OUT).
5. NO MMSI
If you press [LOG], [CALL/MSG] or [DISTRESS] key without MMSI being registered,
a pop-up window will appear as an error and alarm will go off.
6. System ERROR
When CPU detects malfunction with DSP, a pop-up window will appear as an error and
alarm will go off. U20: DSP and U30: CPU are in constant contact. If DSP does not
respond to a command from CPU, CPU will recognize DSP as malfunctioning and error
will go off.
7. RTC ERROR Input RTC
When communication between CPU and RTC stops, it is outputted by pop-up window.
In case this pop-up window is shown, failure of the RTC board can be considered.
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